Model: | 7 7/8“ |
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Brand: | Great |
Origin: | Made In China |
Category: | Metallurgy , Mining & Energy / Metallurgy & Mining / Other Metallic |
Label: | PDC bits , tricone bits , diamond bits |
Price: |
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Min. Order: | 1 pc |
Live Chat: | Last Online:15 Jan, 2014 |
1) GREAT PDC bits
A complete line from 3 7/8'' (98mm)~26''(660mm); IADC code in all sizes and
in stocks; Used for oil/water well,mining,etc;
1.Suitable for medium formation with harder,more abrasive streaks. (hard shale,mudstone, soft limestone,etc.)
2.This series bits are sealed with journal bearing,which can drill stably with high rotary speed.
3.Hardfaced of head bearing to increase the wear resistance.
4.New type of grease is used which can resist high temperature.